Can dogs eat pistachios?
✓ Reviewed against PDSA, Blue Cross & Animal PoisonLine guidance · Last updated: 2026-06-17
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The full picture
Pistachios sit in the same awkward 'not toxic but not good' zone as almonds. They're high in fat (pancreatitis risk), usually heavily salted, and can harbor the same Aspergillus mold as walnuts and pecans — though less commonly. The shells are genuinely dangerous: a dog that eats a whole pistachio (shell included) can develop intestinal blockages. If your dog steals a shelled, unsalted pistachio it's unlikely to cause an emergency, but don't share pistachios deliberately.
If your dog ate more than a safe amount
For a small accidental taste, watch for vomiting, diarrhoea, or signs of discomfort over the next few hours. For a large amount or if your dog is small or has existing health conditions, call your vet. When in doubt, call the ASPCA Animal Poison Control Center on (888) 426-4435.
Risks to watch for
- High fat causes pancreatitis
- Shells cause blockage/choking
- Salt in most commercial pistachios
- Mold toxins possible
Safe portion size
None recommended.
Safer alternatives
- Plain unsalted peanut butter (xylitol-free)
Does size or breed matter?
Pistachios aren't classed as toxic to dogs the way macadamia nuts are, but they're a choking and obstruction risk (particularly whole or in shell) and high in fat, which matters more for small and toy breeds and any dog prone to pancreatitis. Always give plain, unsalted, shelled nuts in small amounts, chopped for smaller dogs.